LVINAS "M8x35" M8 35mm Socket Head Bolts (Pack of 10) High-Strength Japanese-Made Bolts [SCM435 Black Oxide Coating] [JIS Standard] Strength Classific

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1. KEY FEATURES: - Thread pitch 1.25mm (coarse) JIS standard, domestically produced bolt manufactured at a factory specializing in bolts in Kyoto - This product is made of chromoly steel, which boasts a strength classification of ``12.9'', whereas common commercially available bolts made of raw steel have a strength classification of ``3.6 to 4.8''. - What is the strength classification “12.9”?→It expresses the strength of being able to grow to 90% of the weight (108 kg) without breaking down to 120 kg and then return to its original state.This means that if a commercially available bolt is ``3.6'', it will not break until ``30 kg'' and will return to its original state even if it stretches to 60% (18 kg). - SCM435 bolts are high-strength bolts that are mainly used in military fighter jets, aircraft, weapons, manufacturing machines, high-temperature areas, NC, molds, joints between steel materials, and other places where loads are applied to all kinds of machine tools. - Stronger than steel, rust resistant, and galling resistant

3. PRODUCT DIMENSIONS & WEIGHT: - Weight: 0.18 kg - Dimensions: 11.3 x 6.3 x 2.3 cm